Table 2.

Sensitivity, specificity and efficiency of PCR to detect malaria in the study population

Test		Smear		Total	Sen.	Spec.	Eff.
		Positive	Negative
PCR	Positive	38	35	73	0.90	0.97	0.97
	Negative	4	1,172	1,176
Total		42	1,207	1,249

Data represent the number of positive and negative individuals results for samples tested by both methods. Sen = Sensitivity, Spec = specifcity and Eff = efficiency. Data are the proportion of true positive and true negative (using the peripheral blood smear as the gold standard test).